CRM/Core/Form/Renderer.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | CiviCRM version 4.4                                                |
   5  +--------------------------------------------------------------------+
   6  | Copyright CiviCRM LLC (c) 2004-2013                                |
   7  +--------------------------------------------------------------------+
   8  | This file is a part of CiviCRM.                                    |
   9  |                                                                    |
  10  | CiviCRM is free software; you can copy, modify, and distribute it  |
  11  | under the terms of the GNU Affero General Public License           |
  12  | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
  13  |                                                                    |
  14  | CiviCRM is distributed in the hope that it will be useful, but     |
  15  | WITHOUT ANY WARRANTY; without even the implied warranty of         |
  16  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
  17  | See the GNU Affero General Public License for more details.        |
  18  |                                                                    |
  19  | You should have received a copy of the GNU Affero General Public   |
  20  | License and the CiviCRM Licensing Exception along                  |
  21  | with this program; if not, contact CiviCRM LLC                     |
  22  | at info[AT]civicrm[DOT]org. If you have questions about the        |
  23  | GNU Affero General Public License or the licensing of CiviCRM,     |
  24  | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
  25  +--------------------------------------------------------------------+
  26 */
  27
  28 /**
  29  *
  30  * @package CRM
  31  * @copyright CiviCRM LLC (c) 2004-2013
  32  * $Id$
  33  *
  34  */
  35
  36 require_once 'HTML/QuickForm/Renderer/ArraySmarty.php';
  37
  38 /**
  39  * customize the output to meet our specific requirements
  40  */
  41 class CRM_Core_Form_Renderer extends HTML_QuickForm_Renderer_ArraySmarty {
  42
  43   /**
  44    * We only need one instance of this object. So we use the singleton
  45    * pattern and cache the instance in this variable
  46    *
  47    * @var object
  48    * @static
  49    */
  50   static private $_singleton = NULL;
  51
  52   /**
  53    * the converter from array size to css class
  54    *
  55    * @var array
  56    * @static
  57    */
  58   static $_sizeMapper = array(
  59     2 => 'two',
  60     4 => 'four',
  61     6 => 'six',
  62     8 => 'eight',
  63     12 => 'twelve',
  64     20 => 'medium',
  65     30 => 'big',
  66     45 => 'huge',
  67   );
  68
  69   /**
  70    * Constructor
  71    *
  72    * @access public
  73    */ function __construct() {
  74     $template = CRM_Core_Smarty::singleton();
  75     parent::__construct($template);
  76   }
  77
  78   /**
  79    * Static instance provider.
  80    *
  81    * Method providing static instance of as in Singleton pattern.
  82    */
  83   static function &singleton() {
  84     if (!isset(self::$_singleton)) {
  85       self::$_singleton = new CRM_Core_Form_Renderer();
  86     }
  87     return self::$_singleton;
  88   }
  89
  90   /**
  91    * Creates an array representing an element containing
  92    * the key for storing this. We allow the parent to do most of the
  93    * work, but then we add some CiviCRM specific enhancements to
  94    * make the html compliant with our css etc
  95    *
  96    * @access private
  97    *
  98    * @param  object    An HTML_QuickForm_element object
  99    * @param  bool      Whether an element is required
 100    * @param  string    Error associated with the element
 101    *
 102    * @return array
 103    */
 104   function _elementToArray(&$element, $required, $error) {
 105     self::updateAttributes($element, $required, $error);
 106
 107     $el = parent::_elementToArray($element, $required, $error);
 108
 109     // add label html
 110     if (!empty($el['label'])) {
 111       $id = $element->getAttribute('id');
 112       if (!empty($id)) {
 113         $el['label'] = '<label for="' . $id . '">' . $el['label'] . '</label>';
 114       }
 115       else {
 116         $el['label'] = "<label>{$el['label']}</label>";
 117       }
 118     }
 119
 120     return $el;
 121   }
 122
 123   /**
 124    * Update the attributes of this element and add a few CiviCRM
 125    * based attributes so we can style this form element better
 126    *
 127    * @access private
 128    *
 129    * @param  object    An HTML_QuickForm_element object
 130    * @param  bool      Whether an element is required
 131    * @param  string    Error associated with the element
 132    *
 133    * @return array
 134    * @static
 135    */
 136   static function updateAttributes(&$element, $required, $error) {
 137     // lets create an id for all input elements, so we can generate nice label tags
 138     // to make it nice and clean, we'll just use the elementName if it is non null
 139     $attributes = array();
 140     if (!$element->getAttribute('id')) {
 141       $name = $element->getAttribute('name');
 142       if ($name) {
 143         $attributes['id'] = str_replace(array(']', '['),
 144           array('', '_'),
 145           $name
 146         );
 147       }
 148     }
 149
 150     $class = $element->getAttribute('class');
 151     $type = $element->getType();
 152     if (empty($class)) {
 153       $class = 'form-' . $type;
 154
 155       if ($type == 'text') {
 156         $size = $element->getAttribute('size');
 157         if (!empty($size)) {
 158           if (array_key_exists($size, self::$_sizeMapper)) {
 159             $class = $class . ' ' . self::$_sizeMapper[$size];
 160           }
 161         }
 162       }
 163     }
 164
 165     if ($required) {
 166       $class .= ' required';
 167     }
 168
 169     if ($error) {
 170       $class .= ' error';
 171     }
 172
 173     $attributes['class'] = $class;
 174     $element->updateAttributes($attributes);
 175   }
 176 }
 177 // end CRM_Core_Form_Renderer
 178